http://www.ckfitnessonline.com/about.html
I started out this journey very heavy, and I had a hard time exercising at first, everything was just too difficult. I bought a video by this instructor called "Safe and Fit" and it was GREAT!!!!! Very, very thorough, gentle without being easy, I want to suggest and highly recommend these to anyone who, like me, needed to build gradually. Not wimpy at all!
Jan